package emulator.xml.client;

import emulator.bean.Service;
import emulator.xml.codec.HttpXmlRequestEncoder;
import emulator.xml.codec.HttpXmlResponseDecoder;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpRequestEncoder;
import io.netty.handler.codec.http.HttpResponseDecoder;

import java.net.InetSocketAddress;

public class HttpXmlClient {

	public void connect(int port) throws Exception {
		// 配置客户端NIO线程组
		EventLoopGroup group = new NioEventLoopGroup();
		try {
			Bootstrap b = new Bootstrap();
			b.group(group).channel(NioSocketChannel.class)
					.option(ChannelOption.TCP_NODELAY, true)
					.handler(new ChannelInitializer<SocketChannel>() {
						@Override
						public void initChannel(SocketChannel ch)
								throws Exception {
							ch.pipeline().addLast("http-decoder",
									new HttpResponseDecoder());
							ch.pipeline().addLast("http-aggregator",
									new HttpObjectAggregator(65536));
							// XML解码器
							ch.pipeline().addLast(
									"xml-decoder",
									new HttpXmlResponseDecoder(Service.class,
											true));
							ch.pipeline().addLast("http-encoder",
									new HttpRequestEncoder());
							ch.pipeline().addLast("xml-encoder",
									new HttpXmlRequestEncoder());
							ch.pipeline().addLast("xmlClientHandler",
									new HttpXmlClientHandler());
						}
					});

			// 发起异步连接操作
			ChannelFuture f = b.connect(new InetSocketAddress(port)).sync();

			// 当代客户端链路关闭
			f.channel().closeFuture().sync();
		} finally {
			// 优雅退出，释放NIO线程组
			group.shutdownGracefully();
		}
	}

	/**
	 * @param args
	 * @throws Exception
	 */
	public static void main(String[] args) throws Exception {
		int port = 8080;
		new HttpXmlClient().connect(port);
	}
}
